Edimax AC600 can not work with 5G

[KES777]

$ uname -a
Linux work 6.8.0-45-generic #45~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Sep 11 15:25:05 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

$ sudo lsusb       
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 7392:a812 Edimax Technology Co., Ltd Edimax AC600 USB
Bus 001 Device 010: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 009: ID 0c45:62f1 Microdia USB 2.0 Camera
Bus 001 Device 008: ID 09da:9090 A4Tech Co., Ltd. XL-730K / XL-750BK / XL-755BK Mice
Bus 001 Device 007: ID 09da:2268 A4Tech Co., Ltd. USB Keyboard
Bus 001 Device 005: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 003: ID 0b05:19af ASUSTek Computer, Inc. AURA LED Controller
Bus 001 Device 002: ID 046d:0aee Logitech, Inc. Zone Vibe 125
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ sudo rfkill list all
0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

$ sudo dkms status
rtl8821au/5.12.5.2, 6.8.0-45-generic, x86_64: installed

$ sudo iw dev
phy#0
	Interface wlx08beac187b82
		ifindex 3
		wdev 0x1
		addr 08:be:ac:18:7b:82
		ssid BELL575
		type managed
		channel 11 (2462 MHz), width: 20 MHz, center1: 2462 MHz
		txpower 16.00 dBm

$ sudo iw phy0 info
Wiphy phy0
	wiphy index: 0
	max # scan SSIDs: 9
	max scan IEs length: 2304 bytes
	max # sched scan SSIDs: 0
	max # match sets: 0
	Retry short limit: 7
	Retry long limit: 4
	Coverage class: 0 (up to 0m)
	Device supports T-DLS.
	Supported Ciphers:
		* WEP40 (00-0f-ac:1)
		* WEP104 (00-0f-ac:5)
		* TKIP (00-0f-ac:2)
		* CCMP-128 (00-0f-ac:4)
		* CMAC (00-0f-ac:6)
	Available Antennas: TX 0 RX 0
	Supported interface modes:
		 * IBSS
		 * managed
		 * AP
		 * monitor
		 * P2P-client
		 * P2P-GO
	Band 1:
		Capabilities: 0x1962
			HT20/HT40
			Static SM Power Save
			RX HT20 SGI
			RX HT40 SGI
			RX STBC 1-stream
			Max AMSDU length: 7935 bytes
			DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: 16 usec (0x07)
		HT Max RX data rate: 150 Mbps
		HT TX/RX MCS rate indexes supported: 0-7
		Bitrates (non-HT):
			* 1.0 Mbps
			* 2.0 Mbps
			* 5.5 Mbps
			* 11.0 Mbps
			* 6.0 Mbps
			* 9.0 Mbps
			* 12.0 Mbps
			* 18.0 Mbps
			* 24.0 Mbps
			* 36.0 Mbps
			* 48.0 Mbps
			* 54.0 Mbps
		Frequencies:
			* 2412 MHz [1] (16.0 dBm)
			* 2417 MHz [2] (16.0 dBm)
			* 2422 MHz [3] (16.0 dBm)
			* 2427 MHz [4] (16.0 dBm)
			* 2432 MHz [5] (16.0 dBm)
			* 2437 MHz [6] (16.0 dBm)
			* 2442 MHz [7] (16.0 dBm)
			* 2447 MHz [8] (16.0 dBm)
			* 2452 MHz [9] (16.0 dBm)
			* 2457 MHz [10] (16.0 dBm)
			* 2462 MHz [11] (16.0 dBm)
			* 2467 MHz [12] (16.0 dBm) (no IR)
			* 2472 MHz [13] (16.0 dBm) (no IR)
			* 2484 MHz [14] (disabled)
	Band 2:
		Capabilities: 0x862
			HT20/HT40
			Static SM Power Save
			RX HT20 SGI
			RX HT40 SGI
			No RX STBC
			Max AMSDU length: 7935 bytes
			No DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: 16 usec (0x07)
		HT Max RX data rate: 150 Mbps
		HT TX/RX MCS rate indexes supported: 0-7
		VHT Capabilities (0x03c00122):
			Max MPDU length: 11454
			Supported Channel Width: neither 160 nor 80+80
			short GI (80 MHz)
			+HTC-VHT
		VHT RX MCS set:
			1 streams: MCS 0-9
			2 streams: not supported
			3 streams: not supported
			4 streams: not supported
			5 streams: not supported
			6 streams: not supported
			7 streams: not supported
			8 streams: not supported
		VHT RX highest supported: 434 Mbps
		VHT TX MCS set:
			1 streams: MCS 0-9
			2 streams: not supported
			3 streams: not supported
			4 streams: not supported
			5 streams: not supported
			6 streams: not supported
			7 streams: not supported
			8 streams: not supported
		VHT TX highest supported: 434 Mbps
		Bitrates (non-HT):
			* 6.0 Mbps
			* 9.0 Mbps
			* 12.0 Mbps
			* 18.0 Mbps
			* 24.0 Mbps
			* 36.0 Mbps
			* 48.0 Mbps
			* 54.0 Mbps
		Frequencies:
			* 5180 MHz [36] (13.0 dBm)
			* 5200 MHz [40] (13.0 dBm)
			* 5220 MHz [44] (13.0 dBm)
			* 5240 MHz [48] (13.0 dBm)
			* 5260 MHz [52] (13.0 dBm) (radar detection)
			* 5280 MHz [56] (13.0 dBm) (radar detection)
			* 5300 MHz [60] (13.0 dBm) (radar detection)
			* 5320 MHz [64] (13.0 dBm) (radar detection)
			* 5500 MHz [100] (disabled)
			* 5520 MHz [104] (disabled)
			* 5540 MHz [108] (disabled)
			* 5560 MHz [112] (disabled)
			* 5580 MHz [116] (disabled)
			* 5600 MHz [120] (disabled)
			* 5620 MHz [124] (disabled)
			* 5640 MHz [128] (disabled)
			* 5660 MHz [132] (disabled)
			* 5680 MHz [136] (disabled)
			* 5700 MHz [140] (disabled)
			* 5720 MHz [144] (disabled)
			* 5745 MHz [149] (disabled)
			* 5765 MHz [153] (disabled)
			* 5785 MHz [157] (disabled)
			* 5805 MHz [161] (disabled)
			* 5825 MHz [165] (disabled)
			* 5845 MHz [169] (disabled)
			* 5865 MHz [173] (disabled)
			* 5885 MHz [177] (disabled)
	Supported commands:
		 * new_interface
		 * set_interface
		 * new_key
		 * start_ap
		 * new_station
		 * set_bss
		 * join_ibss
		 * set_pmksa
		 * del_pmksa
		 * flush_pmksa
		 * remain_on_channel
		 * frame
		 * set_channel
		 * tdls_mgmt
		 * tdls_oper
		 * connect
		 * disconnect
	WoWLAN support:
		 * wake up on anything (device continues operating normally)
	software interface modes (can always be added):
		 * monitor
	interface combinations are not supported
	Device supports SAE with AUTHENTICATE command
	Device supports scan flush.
	Device supports randomizing MAC-addr in scans.
	max # scan plans: 1
	max scan plan interval: -1
	max scan plan iterations: 0
	Supported TX frame types:
		 * IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
	Supported RX frame types:
		 * IBSS: 0xd0
		 * managed: 0x40 0xb0 0xd0
		 * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * P2P-client: 0x40 0xd0
		 * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
	Supported extended features:

$ git status
On branch main
Your branch is up to date with 'origin/main'.

nothing to commit, working tree clean

$ git tree -n 5
* 0b12ea5 (HEAD -> main, origin/main, origin/HEAD) update README
* eec76d8 Update README.md
* 8a7c9b9 add message about new driver
* aa53d4d minor updates
* 847c74b update docs

$ sudo ./install-driver.sh 
: ---------------------------
: install-driver.sh v20240314
: x86_64 (kernel architecture)
: x86_64 (architecture to send to gcc)
: 8/8 (in-use/total processing units)
: 16112300 (total system memory)
: 6.8.0-45-generic (kernel version)
: gcc-12 (version of gcc used to compile the kernel)
: gcc (Ubuntu 13.1.0-8ubuntu1~22.04) 13.1.0
: dkms-2.8.7
: SecureBoot disabled
: ---------------------------

Checking for previously installed drivers...
Module rtl8821au-5.12.5.2 for kernel 6.8.0-45-generic (x86_64).
Before uninstall, this module version was ACTIVE on this kernel.

8821au.ko:
 - Uninstallation
   - Deleting from: /lib/modules/6.8.0-45-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

depmod...
Deleting module rtl8821au-5.12.5.2 completely from the DKMS tree.
Removing 8821au.conf from /etc/modprobe.d
Removing source files from /usr/src/rtl8821au-5.12.5.2
Finished checking for and removing previously installed drivers.
: ---------------------------

Starting installation.
Installing 8821au.conf to /etc/modprobe.d
The dkms installation routines are in use.
Copying source files to /usr/src/rtl8821au-5.12.5.2
Creating symlink /var/lib/dkms/rtl8821au/5.12.5.2/source -> /usr/src/rtl8821au-5.12.5.2
The driver was added to dkms successfully.
: ---------------------------


Kernel preparation unnecessary for this kernel. Skipping...

Building module:
cleaning build area...
kernelver=6.8.0-45-generic ./dkms-make.sh..........
cleaning build area...
Compile time: 136.62 seconds
The driver was built by dkms successfully.
: ---------------------------

8821au.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/6.8.0-45-generic/updates/dkms/

depmod...
The driver was installed by dkms successfully.
: ---------------------------

Info: Update this driver with the following commands as needed:

$ git pull
$ sudo sh install-driver.sh

Note: Updates to this driver SHOULD be performed before distro
      upgrades such as Ubuntu 23.10 to 24.04.
Note: Updates to this driver SHOULD be performed before major
      upgrades such as kernel 6.5 to 6.6.
Note: Updates can be performed as often as you like. It is
      recommended to update at least every 3 months.
Note: Work on this driver, like the Linux kernel, is continuous.

Enjoy!

Do you want to edit the driver options file now? (recommended) [Y/n] y
Do you want to apply the new options by rebooting now? (recommended) [Y/n] 

If I force to use 5G, then new connection is automatically created =( The configuration with 5G forced stays unconnected:

[KES777]

If I add this option options 8821au rtw_wireless_mode=64 and reboot then WIFI routed is not listed:

I expect to see BELL575 here.

I suppose I could tune something here.

[morrownr]

Hi @KES777

The first thing I think of when I see a report where 2g is working and 5g is not is that something is amiss with the regulatory information. What is your country?

Report the results of the following:

$ iw reg get

Remember to return any settings that you try to what they were if they don't work or we will end up self inflicting a wound.

[KES777]

I bought this device in Poland, then moved into Canada.

iw reg get
global
country CA: DFS-FCC
	(2402 - 2472 @ 40), (N/A, 30), (N/A)
	(5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
	(5250 - 5350 @ 80), (N/A, 24), (0 ms), DFS, AUTO-BW
	(5470 - 5600 @ 80), (N/A, 24), (0 ms), DFS
	(5650 - 5730 @ 80), (N/A, 24), (0 ms), DFS
	(5735 - 5835 @ 80), (N/A, 30), (N/A)
	(5925 - 7125 @ 320), (N/A, 12), (N/A), NO-OUTDOOR

Though this device worked with TP-Link in 5G mode. Let me share these device models tomorrow.

[KES777]

APs I use to connect to:
TL-WPA8631P - I am able to connect to 5G via this device.
Sagemcom GigaHub (FAST 5689E). - I am not able to connect to 5G via this device. I am able to connect to 5G via phone.

[morrownr]

@KES777

Hmmm... so you are only seeing the problem with the Sagemcom GigaHub AP? What channels are the two APs using?

If one is using a lower channel like 36 and the other is using a higher channel like 149, you might switch them and see if that makes a difference.

[KES777]

I do not know. If I could find any instructions how to switch that I could test that.